On September 30, each of the Legendary beasts will move to a new region, and continue to appear there until October 31. They will move for the final time on October 31.

Furthermore, testing of EX Raid Battles (previously referred to as Exclusive Raid Battles) will begin by Sept. 6, 2017 at select Gyms. During the field test, Niantic will make adjustments to EX Raid Battle eligibility requirements, frequency, times, locations, and durations in order to produce a feature that satisfies fans.